Symmetrical input device



FIG. 1 is a right-side perspective view of a symmetrical input device showing our new design;

FIG. 2 is a left-side perspective view thereof;

FIG. 3 is top plan view thereof;

FIG. 4 is bottom plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is rear elevational view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a left side elevational view thereof.

The elements shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for our symmetrical input device, as shown and described. 